@charset "UTF-8";
/* ============================================
   STEMfy.gr — Simulations Stylesheet
   Double Pendulum & Shared Simulation Styles
   ============================================ */

/* ============================================
   SIMULATION LAYOUT
   ============================================ */

.simulation-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    --sim-nav-height: 108px;
    --chaos-panel-width: clamp(260px, 28vw, 380px);
    --control-panel-width: clamp(240px, 26vw, 320px);
    --panel-left: 0px;
    --panel-right: 0px;
    --color-chaos-stable: #1a3a5a;
    --color-chaos-mid: #7a4a8a;
    --color-chaos-chaotic: #ff7aec;
}

/* Top Navigation Bar */
.sim-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: linear-gradient(to bottom, rgba(10, 8, 18, 0.96), rgba(10, 8, 18, 0.7));
    border-bottom: 1px solid rgba(176, 138, 240, 0.18);
}

.sim-help-btn {
    color: var(--purple-bright);
}

.sim-help-btn {
    width: auto;
    height: auto;
    padding: 0.35rem 0.55rem;
    border-radius: 12px;
    border: 1px solid rgba(176, 138, 240, 0.25);
    background: rgba(176, 138, 240, 0.12);
    gap: 0.5rem;
}

.sim-help-btn:hover {
    color: var(--white);
    border-color: rgba(176, 138, 240, 0.45);
    background: rgba(176, 138, 240, 0.2);
}

.sim-help-btn svg {
    fill: none;
    stroke: currentColor;
}

.sim-help-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: rgba(10, 8, 18, 0.6);
    border: 1px solid rgba(176, 138, 240, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    color: inherit;
}

.sim-help-icon svg {
    width: 18px;
    height: 18px;
}

.sim-help-text {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--white);
}
.sim-view-btn {
    color: var(--white-dim);
}

body.sim-view-mobile .sim-view-btn {
    color: var(--purple-bright);
}

.sim-view-btn svg {
    fill: none;
    stroke: currentColor;
}

/* Mobile top nav scrolling for simulation view */
body.sim-view-mobile .sim-nav .nav-right {
    width: 100%;
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 0.75rem;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 0.25rem;
    -webkit-overflow-scrolling: touch;
}

body.sim-view-mobile .sim-nav .nav-right > * {
    flex: 0 0 auto;
}

body.sim-view-mobile .sim-nav .nav-links {
    flex-wrap: nowrap;
    gap: 0.5rem;
}

body.sim-view-mobile .sim-nav .nav-links a,
body.sim-view-mobile .sim-nav .settings-btn,
body.sim-view-mobile .sim-nav .sim-help-btn {
    flex: 0 0 auto;
    white-space: nowrap;
}

/* Responsive nav button sizing for mobile */
body.sim-view-mobile .sim-nav .nav-links a {
    font-size: 0.8rem;
    padding: 0.4rem 0.6rem;
}

body.sim-view-mobile .sim-nav .settings-btn {
    width: 36px;
    height: 36px;
    padding: 0.4rem;
}

body.sim-view-mobile .sim-nav .settings-btn svg {
    width: 18px;
    height: 18px;
}

body.sim-view-mobile .sim-help-btn {
    padding: 0.25rem;
    gap: 0;
}

body.sim-view-mobile .sim-help-icon {
    width: 28px;
    height: 28px;
}

body.sim-view-mobile .sim-help-icon svg {
    width: 16px;
    height: 16px;
}

body.sim-view-mobile .sim-help-text {
    display: none;
}

/* Extra-tight spacing for very small screens */
@media (max-width: 400px) {
    body.sim-view-mobile .sim-nav .nav-links a {
        font-size: 0.75rem;
        padding: 0.35rem 0.5rem;
    }
}


/* Main Content Area */
.sim-content {
    margin-top: var(--sim-nav-height);
    flex: 1;
    display: flex;
    position: relative;
    padding-left: var(--panel-left);
    padding-right: var(--panel-right);
}

/* Main Canvas Area */
.sim-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1rem, 3vw, 2.5rem);
    position: relative;
    min-width: 0;
}

.sim-canvas-container {
    position: relative;
    background: var(--bg-surface);
    border: 1px solid rgba(176, 138, 240, 0.25);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

#pendulum-canvas-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.sim-canvas-actions {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    gap: var(--space-sm);
    z-index: 2;
}

.sim-canvas-actions .btn--icon {
    background: rgba(10, 8, 18, 0.6);
    border-color: rgba(176, 138, 240, 0.35);
    color: var(--purple-bright);
    min-width: 40px;
    min-height: 40px;
}

.sim-canvas-actions .btn--icon:hover {
    background: rgba(176, 138, 240, 0.2);
    border-color: rgba(176, 138, 240, 0.5);
}
#pendulum-canvas {
    display: block;
    background: transparent;
    margin: 0 auto;
}

/* ============================================
   CONTROL PANEL
   ============================================ */

.control-panel {
    position: fixed;
    top: var(--sim-nav-height);
    right: 0;
    width: var(--control-panel-width);
    height: calc(100vh - var(--sim-nav-height));
    background: var(--bg-panel);
    border-left: 1px solid rgba(176, 138, 240, 0.2);
    box-shadow: -18px 0 40px rgba(0, 0, 0, 0.35);
    overflow-y: auto;
    z-index: 900;
    transition: transform var(--transition-normal);
    backdrop-filter: blur(10px);
}

.control-panel.collapsed {
    transform: translateX(100%);
}

.control-panel__header {
    position: sticky;
    top: 0;
    background: rgba(12, 8, 20, 0.95);
    padding: var(--space-md);
    border-bottom: 1px solid rgba(176, 138, 240, 0.2);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.control-panel__title {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--purple-bright);
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.control-panel__content {
    padding: var(--space-md);
}

/* Control Sections */
.control-section {
    margin-bottom: var(--space-lg);
}

.control-section__title {
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--gray);
    margin-bottom: var(--space-md);
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

/* Slider Controls */
.control-slider {
    margin-bottom: var(--space-md);
}

.control-slider__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xs);
}

.control-slider__label {
    font-size: 0.8125rem;
    color: var(--color-white-soft);
}

.control-slider__value {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--purple-bright);
    background: rgba(176, 138, 240, 0.16);
    border: 1px solid rgba(176, 138, 240, 0.25);
    padding: 2px 10px;
    border-radius: 8px;
    min-width: 64px;
    text-align: center;
}

.control-slider__input {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--color-bg-deep);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    cursor: pointer;
}

.control-slider__input::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-blue-bright);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.control-slider__input::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(176, 138, 240, 0.6);
}

.control-slider__input::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-blue-bright);
    cursor: pointer;
    border: none;
}

/* Toggle Controls */
.control-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) 0;
}

.control-toggle__label {
    font-size: 0.8125rem;
    color: var(--color-white-soft);
}

.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch__slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg-deep);
    border: 1px solid var(--color-blue-dark);
    border-radius: 12px;
    transition: var(--transition-fast);
}

.toggle-switch__slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background-color: var(--color-gray);
    border-radius: 50%;
    transition: var(--transition-fast);
}

.toggle-switch input:checked + .toggle-switch__slider {
    background-color: rgba(176, 138, 240, 0.3);
    border-color: var(--color-blue-bright);
}

.toggle-switch input:checked + .toggle-switch__slider:before {
    transform: translateX(20px);
    background-color: var(--color-blue-bright);
}

/* Dropdown Controls */
.control-dropdown {
    margin-bottom: var(--space-md);
}

.control-dropdown__label {
    display: block;
    font-size: 0.8125rem;
    color: var(--color-white-soft);
    margin-bottom: var(--space-xs);
}

.control-dropdown__select {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-deep);
    border: 1px solid var(--color-blue-dark);
    border-radius: var(--border-radius);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.control-dropdown__select:hover,
.control-dropdown__select:focus {
    border-color: var(--color-blue-bright);
    outline: none;
}


/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: 
        background-color var(--transition-fast),
        border-color var(--transition-fast),
        transform var(--transition-fast);
    min-height: 44px;
    min-width: 44px;
}

.btn:active {
    transform: scale(0.96);
}

.btn--primary {
    background: var(--color-blue-bright);
    color: var(--color-bg-deep);
}

.btn--primary:hover {
    background: var(--color-blue-light);
}

.btn--secondary {
    background: transparent;
    border-color: var(--color-blue-dark);
    color: var(--color-white-soft);
}

.btn--secondary:hover {
    border-color: var(--color-blue-bright);
    color: var(--color-white);
}

.btn--icon {
    padding: var(--space-sm);
    background: rgba(176, 138, 240, 0.1);
    border-color: var(--color-blue-dark);
    color: var(--color-blue-bright);
}

.btn--icon:hover {
    background: rgba(176, 138, 240, 0.2);
    border-color: var(--color-blue-bright);
}

.btn--icon svg {
    width: 20px;
    height: 20px;
}

/* Playback Controls */
.playback-controls {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-blue-dark);
    margin-bottom: var(--space-md);
}

.btn--play {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-blue-bright);
    color: var(--color-bg-deep);
}

.btn--play:hover {
    background: var(--color-blue-light);
    box-shadow: var(--shadow-glow);
}

.btn--play svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   CHAOS MAP PANEL
   ============================================ */

.chaos-panel {
    position: fixed;
    top: var(--sim-nav-height);
    left: 0;
    width: var(--chaos-panel-width);
    height: calc(100vh - var(--sim-nav-height));
    background: var(--bg-panel);
    border-right: 1px solid rgba(176, 138, 240, 0.2);
    box-shadow: 18px 0 40px rgba(0, 0, 0, 0.35);
    overflow-y: auto;
    z-index: 900;
    transition: transform var(--transition-normal);
    backdrop-filter: blur(10px);
}

.chaos-panel.collapsed {
    transform: translateX(-100%);
}

.chaos-panel__header {
    position: sticky;
    top: 0;
    background: rgba(12, 8, 20, 0.95);
    padding: var(--space-md);
    border-bottom: 1px solid rgba(176, 138, 240, 0.2);
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-sm);
}

.chaos-panel__title {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--purple-bright);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.chaos-panel__subtitle {
    font-size: 0.75rem;
    color: var(--color-gray);
}

.chaos-panel__actions {
    display: flex;
    gap: var(--space-sm);
}

.chaos-panel__actions .btn--icon {
    background: rgba(10, 8, 18, 0.6);
    border-color: rgba(176, 138, 240, 0.35);
    color: var(--purple-bright);
    min-width: 36px;
    min-height: 36px;
}

.chaos-panel__actions .btn--icon:hover {
    background: rgba(176, 138, 240, 0.2);
    border-color: rgba(176, 138, 240, 0.5);
}

.chaos-panel__content {
    padding: var(--space-md);
}

/* Chaos Map Canvas */
.chaos-map-container {
    position: relative;
    margin-bottom: var(--space-md);
}

#chaos-canvas {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--border-radius);
    cursor: crosshair;
    border: 1px solid var(--color-blue-dark);
}

.chaos-map-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--color-gray);
}

.chaos-map-loading__spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-blue-dark);
    border-top-color: var(--color-blue-bright);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-sm);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Chaos Legend */
.chaos-legend {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    padding: var(--space-sm);
    background: var(--color-bg-deep);
    border-radius: var(--border-radius);
}

.chaos-legend__gradient {
    flex: 1;
    height: 16px;
    border-radius: 4px;
    background: linear-gradient(90deg, 
        var(--color-chaos-stable) 0%,
        var(--color-chaos-mid) 50%,
        var(--color-chaos-chaotic) 100%
    );
}

.chaos-legend__labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.625rem;
    color: var(--color-gray);
    margin-top: var(--space-xs);
}

/* Chaos Coordinate Display */
.chaos-coordinate {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: rgba(10, 8, 18, 0.7);
    border: 1px solid rgba(176, 138, 240, 0.2);
    border-radius: var(--border-radius);
}

.chaos-coordinate__title {
    font-family: var(--font-display);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--purple-bright);
    margin-bottom: 2px;
}

.chaos-coordinate__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    font-size: 0.75rem;
}

.chaos-coordinate__label {
    color: var(--white-dim);
}

.chaos-coordinate__value {
    font-weight: 600;
    color: var(--white);
}

/* Axis Selection */
.axis-selection {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

/* Info Box */
.info-box {
    background: rgba(10, 8, 18, 0.7);
    border: 1px solid rgba(176, 138, 240, 0.2);
    border-radius: var(--border-radius);
    padding: var(--space-md);
    margin-top: var(--space-md);
}

.info-box--challenges {
    border-color: rgba(176, 138, 240, 0.4);
    background: rgba(176, 138, 240, 0.1);
}
.info-box__title {
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--purple-bright);
    margin-bottom: var(--space-sm);
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.info-box__text {
    font-size: 0.8125rem;
    color: var(--white-dim);
    line-height: 1.6;
}

.info-box__link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: var(--space-sm);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--purple-bright);
    text-decoration: none;
}

.info-box__link:hover {
    color: var(--white);
    text-decoration: underline;
}

/* ============================================
   MOBILE TOGGLE BUTTONS
   ============================================ */

.panel-toggle {
    display: none;
    position: fixed;
    z-index: 950;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-panel);
    border: 1px solid rgba(176, 138, 240, 0.2);
    color: var(--purple-bright);
    cursor: pointer;
    transition: 
        background-color var(--transition-fast),
        border-color var(--transition-fast);
}

.panel-toggle:hover {
    background: rgba(176, 138, 240, 0.1);
    border-color: var(--color-blue-bright);
}

.panel-toggle svg {
    width: 20px;
    height: 20px;
}

.panel-toggle--controls {
    top: calc(var(--sim-nav-height) + 12px);
    right: 12px;
}

.panel-toggle--chaos {
    top: calc(var(--sim-nav-height) + 12px);
    left: 12px;
}

/* ============================================
   CHAOS WARNING MODAL
   ============================================ */

.chaos-warning-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    background: rgba(5, 6, 12, 0.72);
    opacity: 0;
    visibility: hidden;
    z-index: 2100;
    transition:
        opacity var(--transition-normal),
        visibility var(--transition-normal);
}

.chaos-warning-modal.active {
    opacity: 1;
    visibility: visible;
}

.chaos-warning-modal__content {
    width: min(520px, 92vw);
    background: var(--bg-panel);
    border: 1px solid rgba(176, 138, 240, 0.35);
    border-radius: var(--border-radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-glow-strong);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.chaos-warning-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
}

.chaos-warning-modal__header h2 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--purple-bright);
    margin: 0;
}

.chaos-warning-modal__close {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid rgba(176, 138, 240, 0.35);
    background: rgba(10, 8, 18, 0.6);
    color: var(--white-dim);
    font-size: 1.2rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.chaos-warning-modal__close:hover {
    color: var(--white);
    border-color: rgba(176, 138, 240, 0.6);
    background: rgba(176, 138, 240, 0.15);
}

.chaos-warning-modal__text {
    color: var(--white-soft);
    font-size: 0.9rem;
    line-height: 1.6;
}

.chaos-warning-modal__note {
    color: var(--color-gray);
    font-size: 0.8rem;
    line-height: 1.6;
}

.chaos-warning-modal__checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--white-dim);
}

.chaos-warning-modal__checkbox input {
    width: 16px;
    height: 16px;
    accent-color: var(--purple-bright);
}

.chaos-warning-modal__actions {
    display: flex;
    gap: var(--space-sm);
    justify-content: flex-end;
    flex-wrap: wrap;
}

.chaos-warning-modal__actions .btn {
    min-width: 160px;
}

/* ============================================
   TUTORIAL OVERLAY
   ============================================ */

.tutorial-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: 
        opacity var(--transition-normal),
        visibility var(--transition-normal);
}

.tutorial-overlay.active {
    opacity: 1;
    visibility: visible;
}

.tutorial-highlight {
    position: absolute;
    box-shadow:
        0 0 0 3px var(--purple-bright),
        0 0 24px rgba(176, 138, 240, 0.45);
    border-radius: var(--border-radius);
    transition: 
        top var(--transition-normal),
        left var(--transition-normal),
        width var(--transition-normal),
        height var(--transition-normal);
    z-index: 2001;
}

.tutorial-tooltip {
    position: absolute;
    background: var(--bg-panel);
    border: 1px solid var(--purple-bright);
    border-radius: var(--border-radius-lg);
    padding: var(--space-lg);
    max-width: 320px;
    z-index: 2002;
    box-shadow: var(--shadow-glow-strong);
}

.tutorial-tooltip__step {
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--purple-bright);
    margin-bottom: var(--space-sm);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.tutorial-tooltip__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.tutorial-tooltip__text {
    font-size: 0.875rem;
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.tutorial-tooltip__hint {
    font-size: 0.75rem;
    color: var(--white-dim);
    margin-bottom: var(--space-md);
}
.tutorial-tooltip__actions {
    display: flex;
    gap: var(--space-sm);
    justify-content: space-between;
    align-items: center;
}

.tutorial-tooltip__btn {
    font-family: var(--font-display);
    font-size: 0.65rem;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius);
    cursor: pointer;
    border: 1px solid;
    transition: 
        background-color var(--transition-fast),
        color var(--transition-fast);
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.tutorial-tooltip__btn--nav {
    width: 42px;
    height: 36px;
    padding: 0;
    font-size: 1rem;
    letter-spacing: 0;
    text-transform: none;
}

.tutorial-tooltip__btn--prev,
.tutorial-tooltip__btn--leave {
    background: transparent;
    border-color: var(--color-gray);
    color: var(--color-gray);
}

.tutorial-tooltip__btn--prev:hover,
.tutorial-tooltip__btn--leave:hover {
    border-color: var(--color-white);
    color: var(--color-white);
}

.tutorial-tooltip__btn--next {
    background: var(--purple-bright);
    border-color: var(--purple-bright);
    color: var(--color-bg-deep);
}

.tutorial-tooltip__btn--next:hover {
    background: var(--purple-glow);
    border-color: var(--purple-glow);
}

.tutorial-tooltip__btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ============================================
   RESPONSIVE — TABLET
   ============================================ */

@media (max-width: 1024px) {
    .simulation-page {
        --control-panel-width: clamp(220px, 30vw, 280px);
        --chaos-panel-width: clamp(240px, 34vw, 320px);
    }
}

/* ============================================
   VIEW MODE OVERRIDES
   ============================================ */

body.sim-view-mobile .simulation-page {
    --sim-nav-height: 128px;
    --panel-left: 0px;
    --panel-right: 0px;
}

body.control-panel-open:not(.sim-view-mobile) .simulation-page {
    --panel-right: var(--control-panel-width);
}

body.chaos-panel-open:not(.sim-view-mobile) .simulation-page {
    --panel-left: var(--chaos-panel-width);
}

/* Old bottom-sheet mobile styles removed - now using tab-based navigation system below */


/* ============================================
   RESPONSIVE — MOBILE
   ============================================ */

@media (max-width: 768px) {
    body:not(.sim-view-desktop):not(.sim-view-mobile) .simulation-page {
        --sim-nav-height: 128px;
        --panel-left: 0px;
        --panel-right: 0px;
    }

    body:not(.sim-view-desktop):not(.sim-view-mobile) .panel-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    body:not(.sim-view-desktop):not(.sim-view-mobile) .control-panel {
        width: 100%;
        height: 60vh;
        top: auto;
        bottom: 0;
        border-left: none;
        border-top: 1px solid rgba(176, 138, 240, 0.2);
        border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
        transform: translateY(100%);
        box-shadow: 0 -18px 40px rgba(0, 0, 0, 0.35);
    }
    
    body:not(.sim-view-desktop):not(.sim-view-mobile) .control-panel.open {
        transform: translateY(0);
    }
    
    body:not(.sim-view-desktop):not(.sim-view-mobile) .chaos-panel {
        width: 100%;
        height: 80vh;
        top: auto;
        bottom: 0;
        border-right: none;
        border-top: 1px solid rgba(176, 138, 240, 0.2);
        border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
        transform: translateY(100%);
        box-shadow: 0 -18px 40px rgba(0, 0, 0, 0.35);
    }
    
    body:not(.sim-view-desktop):not(.sim-view-mobile) .chaos-panel.open {
        transform: translateY(0);
    }
    
    body:not(.sim-view-desktop):not(.sim-view-mobile) .sim-main {
        padding: var(--space-sm);
    }
    
    body:not(.sim-view-desktop):not(.sim-view-mobile) .tutorial-tooltip {
        max-width: calc(100vw - 32px);
        left: 16px !important;
        right: 16px !important;
    }
}

@media (max-width: 480px) {
    body:not(.sim-view-desktop):not(.sim-view-mobile) .simulation-page {
        --sim-nav-height: 140px;
    }

    body:not(.sim-view-desktop):not(.sim-view-mobile) .playback-controls {
        flex-wrap: wrap;
    }

    body:not(.sim-view-desktop):not(.sim-view-mobile) .control-panel__content {
        padding: var(--space-sm);
    }
}

/* ============================================
   MOBILE REDESIGN - Tab Navigation System
   ============================================ */

/* Mobile Tab Bar */
.mobile-tab-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--bg-panel);
    border-top: 1px solid rgba(176, 138, 240, 0.25);
    backdrop-filter: blur(12px);
    z-index: 1200;
    padding: 0 var(--space-sm);
}

body.sim-view-mobile .mobile-tab-bar {
    display: flex;
    align-items: center;
    justify-content: space-around;
}

.mobile-tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    flex: 1;
    height: 100%;
    background: transparent;
    border: none;
    color: var(--white-dim);
    cursor: pointer;
    transition: color var(--transition-fast);
    padding: var(--space-xs);
    position: relative;
}

.mobile-tab:hover,
.mobile-tab:focus {
    color: var(--purple-bright);
    outline: none;
}

.mobile-tab.active {
    color: var(--purple-bright);
}

.mobile-tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 3px;
    background: var(--purple-bright);
    border-radius: 3px 3px 0 0;
}

.mobile-tab__icon {
    width: 24px;
    height: 24px;
}

.mobile-tab__icon svg {
    width: 100%;
    height: 100%;
}

.mobile-tab__label {
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
}

/* Mobile Panel Container */
body.sim-view-mobile .sim-content {
    padding-bottom: 64px; /* Space for tab bar */
}

/* Mobile Panels - Full screen with tab switching */
body.sim-view-mobile .control-panel,
body.sim-view-mobile .chaos-panel {
    width: 100%;
    height: calc(100vh - var(--sim-nav-height) - 64px);
    top: var(--sim-nav-height);
    bottom: auto;
    left: 0;
    right: 0;
    border-radius: 0;
    border: none;
    border-bottom: 1px solid rgba(176, 138, 240, 0.15);
    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    z-index: 950;
}

body.sim-view-mobile .control-panel.mobile-active,
body.sim-view-mobile .chaos-panel.mobile-active {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
}

/* Hide old toggle buttons in new mobile mode */
body.sim-view-mobile .panel-toggle {
    display: none;
}

/* Simulation panel (main canvas) */
body.sim-view-mobile .sim-main {
    position: fixed;
    top: var(--sim-nav-height);
    left: 0;
    right: 0;
    bottom: 64px;
    padding: var(--space-sm);
    z-index: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition-normal);
}

body.sim-view-mobile .sim-main.mobile-hidden {
    opacity: 0;
    pointer-events: none;
}

/* Preview Box - Picture-in-Picture Style */
.mobile-preview-box {
    display: none;
    position: fixed;
    z-index: 900;
    background: var(--bg-surface);
    border: 2px solid rgba(176, 138, 240, 0.45);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(176, 138, 240, 0.2);

    /* Small state - top right corner */
    top: calc(var(--sim-nav-height) + 12px);
    right: 12px;
    width: 120px;
    height: 120px;

    transition:
        top 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
        right 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
        left 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
        width 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
        height 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
        transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
        opacity 0.3s ease;
}

body.sim-view-mobile .mobile-preview-box {
    display: block;
    opacity: 0;
    pointer-events: none;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
    touch-action: none;
}

body.sim-view-mobile .mobile-preview-box.visible {
    opacity: 1;
    pointer-events: auto;
}

body.sim-view-mobile .mobile-preview-box.visible:active {
    cursor: grabbing;
}

/* Preview in corner state (controls/chaos tabs active) */
body.sim-view-mobile .mobile-preview-box.corner {
    top: calc(var(--sim-nav-height) + 12px);
    right: 12px;
    left: auto;
    width: 120px;
    height: 120px;
    transform: none;
}

/* Preview box size constraints */
body.sim-view-mobile .mobile-preview-box {
    min-width: 100px;
    min-height: 100px;
    max-width: calc(100vw - 24px);
    max-height: calc(100vh - var(--sim-nav-height) - 64px - 24px);
}

/* Hide when switching to simulation tab */
body.sim-view-mobile .mobile-preview-box.hidden {
    opacity: 0;
    pointer-events: none;
}

.mobile-preview-box__canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Preview Box Controls */
.mobile-preview-box__controls {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    background: rgba(10, 8, 18, 0.9);
    border: 1px solid rgba(176, 138, 240, 0.35);
    border-radius: 20px;
    backdrop-filter: blur(8px);
}

.mobile-preview-box__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    background: rgba(176, 138, 240, 0.15);
    color: var(--purple-bright);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.mobile-preview-box__btn:hover {
    background: rgba(176, 138, 240, 0.3);
    transform: scale(1.1);
}

.mobile-preview-box__btn:active {
    transform: scale(0.95);
}

.mobile-preview-box__btn svg {
    width: 14px;
    height: 14px;
}

.mobile-preview-box__btn--play {
    width: 32px;
    height: 32px;
    background: var(--purple-bright);
    color: var(--bg-deep);
}

.mobile-preview-box__btn--play:hover {
    background: var(--purple-glow);
}

.mobile-preview-box__btn--play svg {
    width: 16px;
    height: 16px;
}

/* Resize Handle */
.mobile-preview-box__resize {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: nwse-resize;
    color: rgba(176, 138, 240, 0.5);
    transition: color var(--transition-fast);
    touch-action: none;
}

.mobile-preview-box__resize:hover {
    color: var(--purple-bright);
}

.mobile-preview-box__resize svg {
    width: 14px;
    height: 14px;
}

/* Adjustments for mobile control panel header */
body.sim-view-mobile .control-panel__header,
body.sim-view-mobile .chaos-panel__header {
    position: sticky;
    top: 0;
    z-index: 10;
}

/* Mobile playback controls - compact layout */
body.sim-view-mobile .playback-controls {
    padding: var(--space-sm) 0;
    gap: var(--space-md);
}

body.sim-view-mobile .btn--play {
    width: 48px;
    height: 48px;
}

/* Chaos panel adjustments for mobile */
body.sim-view-mobile .chaos-map-container {
    max-width: 280px;
    margin: 0 auto var(--space-md);
}

/* Hide chaos toggle button in control panel on mobile */
body.sim-view-mobile #chaos-toggle {
    display: none;
}

/* Mobile canvas actions positioning */
body.sim-view-mobile .sim-canvas-actions {
    top: 8px;
    right: 8px;
}

body.sim-view-mobile .sim-canvas-actions .btn--icon {
    min-width: 36px;
    min-height: 36px;
}

/* Mobile playback controls on simulation canvas */
.mobile-sim-controls {
    display: none;
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    align-items: center;
    gap: var(--space-sm);
    padding: 6px 10px;
    background: rgba(10, 8, 18, 0.75);
    border: 1px solid rgba(176, 138, 240, 0.3);
    border-radius: 999px;
    backdrop-filter: blur(8px);
    z-index: 2;
}

body.sim-view-mobile .mobile-sim-controls {
    display: flex;
}

body.sim-view-mobile .mobile-sim-controls .btn {
    min-width: 40px;
    min-height: 40px;
}

body.sim-view-mobile .mobile-sim-controls .btn--play {
    width: 44px;
    height: 44px;
}

/* Ensure simulation canvas fills available space on mobile */
body.sim-view-mobile .sim-canvas-container {
    width: 100%;
    max-width: calc(100vh - var(--sim-nav-height) - 64px - 32px);
    aspect-ratio: 1;
}

/* Tutorial adjustments for new mobile layout */
body.sim-view-mobile .tutorial-tooltip {
    bottom: 80px !important;
    top: auto !important;
}

/* ============================================
   View Mode Switcher - Desktop Styles
   ============================================ */

/* Always show view toggle in nav on simulation page */
.sim-view-btn {
    display: flex;
}

/* Desktop mode indicator when forced */
body.sim-view-desktop .sim-view-btn {
    color: var(--color-gray);
}

body.sim-view-desktop .sim-view-btn svg {
    opacity: 0.6;
}